GM Service Manual Online
For 1990-2009 cars only
Table 1: Heated Seat Module
Table 2: HVAC Control Module

Heated Seat Module

Scan Tool Parameter

Data List

Units Displayed

Typical Data Value

Operating Conditions: Ignition ON/Engine OFF

Base Model Part Number

Module ID Information

Numeric

Varies

Calibration Part Number

Module ID Information

Numeric

Varies

Driver Seat Cushion Heat Status

Data Display

Active / Inactive

Inactive

Driver Seat HVC Level

Data Display

High / Low

High

Driver Seat HVC Mode

Data Display

Off / Back & Cushion

Off

End Model Part Number

Module ID Information

Numeric

Varies

Julian Date of Build

Module ID Information

Numeric

Varies

Passenger Seat Cushion Heat Status

Data Display

Active / Inactive

Inactive

Passenger Seat HVC Level

Data Display

High / Low

High

Passenger Seat HVC Mode

Data Display

Off / Back & Cushion

Off

Software Part Number

Module ID Information

Numeric

Varies

Year Module Built

Module ID Information

Numeric

Varies

HVAC Control Module

Scan Tool Parameter

Data List

Units Displayed

Typical Data Value

Operating Conditions: Ignition ON/Engine OFF

Driver Heated Seat Sw.

Inputs

Active / Inactive

Inactive

Pass. Heated Seat Sw.

Inputs

Active / Inactive

Inactive